128480940

素因数分解:

$2^2\times 3^2\times 5^1\times 7^3\times {\mathrm{2081}}^1$

素因数の和:2117

約数の個数: 144

約数和(自身を含む): 454708800

約数和(自身を除く): 326227860

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 28, 30, 35, 36, 42, 45, 49, 60, 63, 70, 84, 90, 98, 105, 126, 140, 147, 180, 196, 210, 245, 252, 294, 315, 343, 420, 441, 490, 588, 630, 686, 735, 882, 980, 1029, 1260, 1372, 1470, 1715, 1764, 2058, 2081, 2205, 2940, 3087, 3430, 4116, 4162, 4410, 5145, 6174, 6243, 6860, 8324, 8820, 10290, 10405, 12348, 12486, 14567, 15435, 18729, 20580, 20810, 24972, 29134, 30870, 31215, 37458, 41620, 43701, 58268, 61740, 62430, 72835, 74916, 87402, 93645, 101969, 124860, 131103, 145670, 174804, 187290, 203938, 218505, 262206, 291340, 305907, 374580, 407876, 437010, 509845, 524412, 611814, 655515, 713783, 874020, 917721, 1019690, 1223628, 1311030, 1427566, 1529535, 1835442, 2039380, 2141349, 2622060, 2855132, 3059070, 3568915, 3670884, 4282698, 4588605, 6118140, 6424047, 7137830, 8565396, 9177210, 10706745, 12848094, 14275660, 18354420, 21413490, 25696188, 32120235, 42826980, 64240470, 128480940]

約数ペア:

[(1, 128480940), (2, 64240470), (3, 42826980), (4, 32120235), (5, 25696188), (6, 21413490), (7, 18354420), (9, 14275660), (10, 12848094), (12, 10706745), (14, 9177210), (15, 8565396), (18, 7137830), (20, 6424047), (21, 6118140), (28, 4588605), (30, 4282698), (35, 3670884), (36, 3568915), (42, 3059070), (45, 2855132), (49, 2622060), (60, 2141349), (63, 2039380), (70, 1835442), (84, 1529535), (90, 1427566), (98, 1311030), (105, 1223628), (126, 1019690), (140, 917721), (147, 874020), (180, 713783), (196, 655515), (210, 611814), (245, 524412), (252, 509845), (294, 437010), (315, 407876), (343, 374580), (420, 305907), (441, 291340), (490, 262206), (588, 218505), (630, 203938), (686, 187290), (735, 174804), (882, 145670), (980, 131103), (1029, 124860), (1260, 101969), (1372, 93645), (1470, 87402), (1715, 74916), (1764, 72835), (2058, 62430), (2081, 61740), (2205, 58268), (2940, 43701), (3087, 41620), (3430, 37458), (4116, 31215), (4162, 30870), (4410, 29134), (5145, 24972), (6174, 20810), (6243, 20580), (6860, 18729), (8324, 15435), (8820, 14567), (10290, 12486), (10405, 12348)]